| City | Seed / establish | Pre-emergent | Season |
|---|
| Birmingham | Apr 4 – Apr 18 | Feb 28 – Mar 21 | 235 days |
| Huntsville | Apr 7 – Apr 21 | Mar 3 – Mar 24 | 229 days |
| Mobile | Mar 7 – Mar 21 | Jan 31 – Feb 21 | 288 days |
All Alabama station records (115)
Every NOAA weather station in Alabama with complete 1991–2020 frost normals — pick
the one nearest you (similar elevation matters more than plain distance).
Not sure which station to trust? Use the
ZIP code lookup
for the quick answer, or pick the station whose terrain most resembles your yard.
Lawn timing geography of Alabama
Across the 118 Alabama locations with complete 1991–2020 frost
normals, the average last spring frost — the anchor for pre-emergent and spring
work — ranges from Jan 31 (Dauphin Is #2) to Apr 11
(Camp Hill 2NW), a spread of about 10 weeks driven by elevation, latitude, and terrain.
The same job can be weeks apart at opposite ends of the state, which is why a
state-level date is only a starting point — pick the location nearest your yard and
plan from its calendar.
The Alabama lawn year in one paragraph
The Alabama lawn year lives in the warm months: pre-emergent in late winter before soil crosses 55°F, establishment and the first feeding after full green-up, aeration in the heat of active growth, and steady mowing all summer. The discipline that separates good southern lawns is the stop date — no nitrogen within 6–8 weeks of first frost, so the lawn hardens off and goes dormant on schedule. Details by task: when to overseed in Alabama, when to aerate in Alabama, when to apply crabgrass pre-emergent in Alabama, and more above.